hi there,
i just fix a Iphone 4G which start all of sudden it ask to activate the phone after restart the phone.
what i did was:
1. was restore the phone to factory default but that is no good at all.
2. try with jailbreak and i get the phone back again but with no wifi, no bluetooth and no network.
3. as i surfing net and get some info such as put the phone into the freezer! i was thinking that was nuts! but it do work after 2 hr in the freezer. wifi working and bluetooth as well. but no service appear which is very annoying. a phone which cant use the sim is useless... so i have to do some research and try.
(put into the freeze to fix the wifi problem 1st before proceed to the following step)
4. jailbreak the phone with redsnow 14b.2. then follow by restore with iphone factory restore.
5. after finish those open your itunes and see your iphone you should be able to see the iphone detail then it will ask you to restore from your backup. after finish restore.
6. it works perfectly!
7.Basically no wifi, no bluetooth and no network service - IS NOT HARDWARE ISSUE AND IT CAN BE SOLVE IF YOU DO SOME RESEARCH.
ok guys good luck to you all!!!!
iphone 4/4S
this is for IOS 5.1.1 version 9B208
redsnow 14B.2
P/S: i learn alot more bout iphone now. hopefully new problem will come so that i can exprience it more!